Estimate of the urban effect on aerosol turbidity of the atmosphere according to data of two-point “background-industrial city” measurements

Poddubny, V. A.; Luzhetskaya, A. P.; Markelov, Yu. I.; Kabanov, D. M.

doi:10.1134/s1024856012050089

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…The method of particle measurement via counting have been widely used to assess aerosol creation [ 11 – 13 ]. Turbidity measurements are more commonly used in larger scale pollution measurements but were adapted to show aerosol generation in another way [ 14 ].…”

Section: Methodsmentioning

confidence: 99%

In vitro comparison of surgical techniques in times of the SARS-CoV-2 pandemic: electrocautery generates more droplets and aerosol than laser surgery or drilling

Guderian

Loth

Weiß

et al. 2020

Eur Arch Otorhinolaryngol

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Introduction Based on current knowledge, the SARS-CoV-2 is transmitted via droplet, aerosols and smear infection. Due to a confirmed high virus load in the upper respiratory tract of COVID-19 patients, there is a potential risk of infection for health care professionals when performing surgical procedures in this area. The aim of this study was the semi-quantitative comparison of ENT-typical interventions in the head and neck area with regard to particle and aerosol generation. These data can potentially contribute to a better risk assessment of aerogenic SARS-CoV-2-transmission caused by medical procedures. Materials and methods As a model, a test chamber was created to examine various typical surgical interventions on porcine soft and hard tissues. Simultaneously, particle and aerosol release were recorded and semi-quantitatively evaluated timedependently. Five typical surgical intervention techniques (mechanical stress with a passive instrument with and without suction, CO 2 laser treatment, drilling and bipolar electrocoagulation) were examined and compared regarding resulting particle release. Results Neither aerosols nor particles could be detected during mechanical manipulation with and without suction. The use of laser technique showed considerable formation of aerosol. During drilling, mainly solid tissue particles were scattered into the environment (18.2 ± 15.7 particles/cm 2 /min). The strongest particle release was determined during electrocoagulation (77.2 ± 30.4 particles/cm 2 /min). The difference in particle release between electrocoagulation and drilling was significant (p < 0.05), while particle diameter was comparable. In addition, relevant amounts of aerosol were released during electrocoagulation (79.6% of the maximum flue gas emission during laser treatment). Discussion Our results demonstrated clear differences comparing surgical model interventions. In contrast to sole mechanical stress with passive instruments, all active instruments (laser, drilling and electrocoagulation) released particles and aerosols. Assuming that particle and aerosol exposure is clinically correlated to the risk of SARS-CoV-2-transmission from the patient to the physician, a potential risk for health care professionals for infection cannot be excluded. Especially electrocautery is frequently used for emergency treatment, e.g., nose bleeding. The use of this technique may, therefore, be considered particularly critical in potentially infectious patients. Alternative methods may be given preference and personal protective equipment should be used consequently.

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Section: Methodsmentioning

confidence: 99%

In vitro comparison of surgical techniques in times of the SARS-CoV-2 pandemic: electrocautery generates more droplets and aerosol than laser surgery or drilling

Guderian

Loth

Weiß

et al. 2020

Eur Arch Otorhinolaryngol

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Airborne particles in Yekaterinburg: An overview of ongoing research activities

Gadelshin

2024

E3S Web Conf.

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In the report an attempt to highlight ongoing research activities related to airborne particles in Yekaterinburg has been undertaken. The attention is directed to Institute of Industrial Ecology UB RAS, which atmosphere scientific program is the most extensive in the region. It consists of experimental studies, represented by monitoring and sampling of particulate matter, dust, and sand particles, with subsequent mass spectrometric analysis; it comprises theoretical methods of data processing and numerical simulations of spatiotemporal pollutant distribution. Because the impact of current studies spans beyond the Ural region, it seems to be noteworthy to exchange with other groups from Central Asia and around the world the information on where the potential cooperations can be established.

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Specific Features of Time Variations in Aerosol Optical Depth in the Middle Urals Using Multiyear Observations in Urban and Background Regions

Luzhetskaya

Poddubny

2020

Atmos Ocean Opt

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Estimate of the urban effect on aerosol turbidity of the atmosphere according to data of two-point “background-industrial city” measurements

Cited by 4 publications

References 6 publications

In vitro comparison of surgical techniques in times of the SARS-CoV-2 pandemic: electrocautery generates more droplets and aerosol than laser surgery or drilling

In vitro comparison of surgical techniques in times of the SARS-CoV-2 pandemic: electrocautery generates more droplets and aerosol than laser surgery or drilling

Airborne particles in Yekaterinburg: An overview of ongoing research activities

Specific Features of Time Variations in Aerosol Optical Depth in the Middle Urals Using Multiyear Observations in Urban and Background Regions

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